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The DC2022A is a demonstration system that showcases the LTC2975, a 4-channel I2C/SMBus/PMBus power system manager with EEPROM. The LTC2975 monitors and controls four power supply rails. The LTC2975 also monitors input current and input voltage, which are used to calculate input power and accumulate energy. The DC2022A demonstrates the ability of the LTC2975 to sequence, trim, margin, supervise, monitor, and log faults for four power supplies. Each power supply channel’s output voltage is monitored and the LTC2975 monitors its own internal die temperature.